1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Match List - I with List - II.

List - I
(Ores)
List - II
(Composition)
(a) Haematite (i) Fe$$_3$$O$$_4$$
(b) Magnetite (ii) ZnCO$$_3$$
(c) Calamine (iii) Fe$$_2$$O$$_3$$
(d) Kaolinite (iv) [Al$$_2$$(OH)$$_4$$Si$$_2$$O$$_5$$]

Choose the correct answer from the options given below:

A
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
B
(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
C
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
D
(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

In the neutral or faintly alkaline medium, KMnO4 oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is form

A
+7 to +4
B
+6 to +4
C
+7 to +3
D
+6 to +5
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Compound X on reaction with O3 followed by Zn/H2O gives formaldehyde and 2-methyl propanal as products. The compound X is

A
3-Methylbut-1-ene
B
2-Methylbut-1-ene
C
2-Methylbut-2-ene
D
Pent-2-ene
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

3O2(g) $$\rightleftharpoons$$ 2O3(g)

for the above reaction at 298 K, Kc is found to be 3.0 $$\times$$ 10$$-$$59. If the concentration of O2 at equilibrium is 0.040 M then concentration of O3 in M is

A
4.38 $$\times$$ 10$$-$$32
B
1.9 $$\times$$ 10$$-$$63
C
2.4 $$\times$$ 1031
D
1.2 $$\times$$ 1021
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